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Developing Effective Teams

*No strings attached. This college course is 100% free and is worth 1 semester credit.

37 Sophia partners guarantee credit transfer.

299 Institutions have accepted or given pre-approval for credit transfer.

* The American Council on Education's College Credit Recommendation Service (ACE Credit®) has evaluated and recommended college credit for 32 of Sophia’s online courses. Many different colleges and universities consider ACE CREDIT recommendations in determining the applicability to their course and degree programs.

Tutorial

Graphing Quadratics (Parabolas) Using a Table of Values

This video shows how to create a table of (x,y) values from the information in your quadratic equation/function to sketch your parabola. *Remember that "y" and "f(x)" are basically treated the same way.

Finding the Vertex of a Parabola

This tutorial explains how to find the vertex of the parabola of a quadratic function when you are given the equation in either "standard form" or "vertex form".

Minimum and Maximum Values of Quadratic Functions

Here we see how to find the min/max "y" values of our parabola. Remember that if your leading coefficient is positive, your parabola opens up and your y value is a "minimum" value. If your leading coefficient is negative, your parabola opens down and your y value is a "maximum" value.

Domain and Range (of Parabolas) in Interval Notation

This video shows you how to find the domain and range of your quadratic function's graph, and describe them in interval notation.